Note 4 - Summary of Significant Accounting Policies (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Payment in Kind (PIK) Note [Member]
Convertible Debt, Fair Value Disclosures	$ 23,463,323		$ 23,463,323		$ 21,789,259
Convertible Debt Securities [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount			38,676,225	31,590,709
Unrecognized Tax Benefits	0		$ 0
Allowance for Doubtful Accounts Receivable	0	$ 0	0	$ 0
Depreciation	$ 338,333	$ 326,684	$ 674,420	$ 652,905
Weighted Average Number of Shares Outstanding, Basic and Diluted	97,889,350	95,653,519	97,556,480	95,381,825
Outstanding Options and Warrants to Purchase Common Stock Not Included in Diluted Computation	24,276,950	18,929,402	24,276,950	18,929,402